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token.h
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token.h
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#ifndef LOX_TOKEN_H
#define LOX_TOKEN_H
#include <string>
using namespace std;
enum TokenType {
// Single-character tokens.
LEFT_PAREN, RIGHT_PAREN, LEFT_BRACE, RIGHT_BRACE,
COMMA, DOT, MINUS, PLUS, SEMICOLON, SLASH, STAR,
// One or two character tokens.
BANG, BANG_EQUAL,
EQUAL, EQUAL_EQUAL,
GREATER, GREATER_EQUAL,
LESS, LESS_EQUAL,
// Literals.
IDENTIFIER, STRING, NUMBER,
// Keywords.
AND, CLASS, ELSE, FALSE, FUN, FOR, IF, NIL, OR,
PRINT, RETURN, SUPER, THIS, TRUE, VAR, WHILE,
ENDOFFILE
};
struct iteral
{
bool boolean;
double val;
string str;
};
class Token
{
public:
TokenType type;
string lexeme;
iteral it;
int line;
Token(TokenType type, string lexeme, iteral it, int line);
Token(const Token& t) = default;
string to_string() const;
void update_line(int l);
};
#endif //LOX_TOKEN_H